1991985

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^2\times {\mathrm{79}}^1$

素因数の和:169

約数の個数: 24

約数和(自身を含む): 3308160

約数和(自身を除く): 1316175

約数列:

[1, 3, 5, 15, 41, 79, 123, 205, 237, 395, 615, 1185, 1681, 3239, 5043, 8405, 9717, 16195, 25215, 48585, 132799, 398397, 663995, 1991985]

約数ペア:

[(1, 1991985), (3, 663995), (5, 398397), (15, 132799), (41, 48585), (79, 25215), (123, 16195), (205, 9717), (237, 8405), (395, 5043), (615, 3239), (1185, 1681)]